Possible Clues:

• Bit of 29-Down
• Some gloomy thought is the stuff of legends
• Story about Zeus or Hera, say
• The "fact" that bulls get angry when they see the color red, e.g
• Legend; folk tale
• Fantastic legend
• Folklore relayed as truth (urban, perhaps)
• Fable; fantasy
• George Washington's chopping down a cherry tree, e.g
• This writer's continuing with the unfinished story